Features of cough variant asthma and classic asthma during methacholine-induced brochoconstriction: a cross-sectional study
نویسندگان
چکیده
منابع مشابه
Features of cough variant asthma and classic asthma during methacholine-induced brochoconstriction: a cross-sectional study
BACKGROUND Little is known regarding mechanistic and phenotypic differences between cough variant asthma (CVA), presenting with a chronic cough as the sole symptom that responds to bronchodilators, and classic asthma with wheezing during methacholine inhalation. Here we reported airway sensitivity, airway reactivity, and as the main concern, the appearance of cough and wheezes during methacholi...
متن کاملValidity of Spirometry for Diagnosis of Cough Variant Asthma
Background Cough variant asthma (CVA) is a chronic or recurrent cough without wheezing accompanied by bronchial hyper-responsiveness and eosinophilic inflammation of the airways. This study aimed to evaluate the validity of spirometry in the diagnosis of CVA, as well as determining the specificity and sensitivity of spirometry parameters in CVA. Materials and Methods This descriptive observat...
متن کاملPrevalence and clinical relevance of allergic rhinitis in patients with classic asthma and cough variant asthma.
BACKGROUND A clinically relevant relationship between classic asthma and allergic rhinitis has been reported. However, the possible link between cough variant asthma (CVA) and allergic rhinitis remains unknown. OBJECTIVES To clarify the prevalence and clinical relevance of perennial allergic rhinitis or seasonal allergic rhinitis in CVA patients compared to classic asthma patients. METHODS ...
متن کاملCough variant asthma and atopic cough
Chronic cough has been reported to be the fifth most common complaint seen by primary care physicians in the world, the third in Italy. Chronic cough in non-smoking, non-treated with ACE-inhibitor adults with normal chest radiogram could be a symptom of asthma and can be sub-classified into: cough-variant asthma, atopic cough, and eosinophilic bronchitis. This review discusses the differential ...
متن کاملComparison of atopic cough with cough variant asthma: is atopic cough a precursor of asthma?
BACKGROUND We have described a group of patients who present with isolated chronic bronchodilator resistant non-productive cough with an atopic constitution, eosinophilic tracheobronchitis, and airway cough receptor hypersensitivity without bronchial hyperresponsiveness, which we have termed "atopic cough". Although cough variant asthma (in which the cough responds to bronchodilators) is recogn...
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ژورنال
عنوان ژورنال: Cough
سال: 2009
ISSN: 1745-9974
DOI: 10.1186/1745-9974-5-3